It started with a single plastic bag of excrement landing in a North York condo building laneway about a year ago.

Then the bags started to add up.

Some days, up to five little clumps of poop — human or animal unknown — would wind up on the ground, near an adjacent daycare centre and on top of port-a-potties at a construction site across the street.

Sometimes, the waste would be delicately wrapped in a paper towel or toilet paper in the laneway behind Gibson Square, at 5168 Yonge St., near Empress Ave.

Victor Tran, a resident in the area, wants to know “the poo bandit” behind it. In a heartfelt plea, he posted photos of the bags of feces on Reddit asking for more information.

He suspects the culprit is flinging the disgusting packages from a balcony high-up in the condo building.

“There was only one guy who witnessed an Asian lady chuck s--- off her balcony, but no one has any hard evidence,” Tran, 32, said.

“It’s just getting a lot worse now. It used to be once a month. There are multiple piles. Everyone’s been complaining. It’s disgusting.”

Toronto Police confirm workers from the construction company — Sobara Group, which is building its Beacon Condos project — filed a complaint Oct. 4. Complainants told investigators various objects had been tossed from an unknown balcony into the area where they worked.

“The items included, glass bottles, fruits, and on the day of the report, a bag of dog excrement was tossed,” said Const. Allyson Douglas-Cook. “It is undetermined exactly where the items are being tossed from, however it is believed be coming from a balcony at 5168 Yonge St. That is all the information we have at this time, the investigation is ongoing.”

A spokesman from Sobara Group didn’t answer requests for comment.

The director of Yonge Hearts Childcare, who only identified herself as Jennifer, said it was concerning someone was dropping dung from above, especially near children.

“We do have children running around and (the bags) were landing near our parking lot and they were also landing in the construction lane,” she said.

In an unrelated incident earlier this month, a Toronto man – John Benzinger, 60 – was charged with 12 counts of mischief and 12 counts of offensive volatile substance after police were made aware of a number of disposable coffee cups filled with human feces and urine on parking meters.